Giuseppe Larosa Sat, 01/31/2009 - 00:46
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Hello Suryakant,

this is because VTP doesn't propagate information about vlans in the extended range, if the node was a VTP server it should advertise the new vlan but it couldn't.

For this reason it is required to move to vtp transparent mode.

to be noted more modern IOS based switches have also the vtp off mode

Hope to help



suryakant.chavan Sat, 01/31/2009 - 00:54
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Hi giuseppee,

thanks for quick reply.

if modern IOS based switches have also the vtp off mode, means we give this command and without going into transparant mode we can create vlan more than 1005.

Is this correct.


royalblues Sat, 01/31/2009 - 01:40
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This mode is similar to transparent mode; but in VTP off mode, the switch does not relay VTP information between switches.

This command is useful when you do not want to send or forward VTP updates—for example, if you are trunking with all non-Cisco switches or if you are using Generic VLAN Registration Protocol (GVRP) dynamic VLAN creation to manage your VLAN database.



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